The Hearing Helper™ FM Tour Guide System, model TGS PRO MULTI, helps tour group members with hearing difficulties overcome background noise and distance from the guide. Use it in factories, museums, power plants---anywhere hearing assistance is needed. The Hearing Helper™ Tour Guide System features eight selectable operating frequencies on 72-76 MHz. As a result, multiple tour guide systems can operate within the same location, simultaneously, with no crosstalk or interference. System includes one (1) T32 transmitter with MIC 086 microphone, ten (10) R35-8 receivers, batteries, and a system carry case.